Teen Mom drama! Jenelle Evans is under fire again for her admission that she was spending a whopping $400 a day on drugs at the worst of her heroin abuse, but RadarOnline.com has exclusively learned that she is proud about her frank admission.

The 21-year-old MTV star is no stranger to drug charges, but in a strange twist she actually revealed that her drug binge cost her hundreds of dollars at her lowest point.

A source close to Jenelle told RadarOnline.com that she is open about her drug use “because she doesn’t want to hide it anymore. Jenelle did the drugs, she’s sober now and she isn’t afraid to talk about it.”

She is also coming attack on Twitter from another Teen Mom, Kailyn Lowry, who has been slamming Jenelle for posting on the website Sulia.

That wasn’t enough of a response for Kaily, who continued her argument writing: “Because untrue and half truths are being written about us for payments. Rumors…” and even after Jenelle tried to calm things down Kaily continued her attack, writing:

Jenelle tried to keep the peace by responding “well I don’t write anything out of the way becuz I don’t want u guys hating me for it so I watch what I say,” but that didn’t help.